Synthesis of 9-Acetyl-8,9-diaza-1-phosphabicyclo[4.3.0]nona-3,7-dienes by Regioselective Diels-Alder Reaction of 2<i>H</i>-1,2,3-Diazaphospholes with Isoprene
作者:Ruyu Chen、Baozhong Cai、Guowei Li
DOI:10.1055/s-1991-26573
日期:——
2H-1,2,3-Diazaphospholes, prepared from various hydrazones and phosphorus trichloride in the presence of triethylamine, react with isoprene to give highly regioselective Diels-Alder products in good yield.
2H-1,2,3-二氮杂膦烯是在三乙胺存在下由各种肼基肟与三氯化磷反应制备的,与异戊二烯反应可生成高区域选择性的Diels-Alder产物,且产率良好。